What's the coldest temperature in Shenzhen?

Located in the south of China, Shenzhen is a coastal city. Located in the south of the Tropic of Cancer, east longitude 1 13 46' to1/4 37', north latitude 22 27' to 22 52'. It has a subtropical climate, with an annual average temperature of 22.4 degrees Celsius, a maximum temperature of 36.6 degrees Celsius and a minimum temperature of 1.4 degrees Celsius. ..